### Home > CCA2 > Chapter 12 > Lesson 12.1.4 > Problem 12-78

12-78.

If *f*(*x*) = 2*x*^{2} − 3 and *g*(*x*) = *x* + 1, find *f*(*g*(*x*)). Homework Help ✎

Substitute *x* + 1 into the equation for f(*x*),then simplify.

2*x*^{2} + 4*x* – 1

12-78.

If *f*(*x*) = 2*x*^{2} − 3 and *g*(*x*) = *x* + 1, find *f*(*g*(*x*)). Homework Help ✎

Substitute *x* + 1 into the equation for f(*x*),then simplify.

2*x*^{2} + 4*x* – 1